Mounting device for dual wheels



$11123, 1946- I H. s. IMOSHER 2,404,520

MOUNTING DEVICE FOR DUAL WHEELS Filed May 21, 1945 INVENTOR. HARVEY e. MQS'HER ATTOR NEYS Patented Jul 23, 1946 "members are la'rger nuts threadedly engaging the exterior of thstud engaging nuts;- .On the other hand, if the clamping means for the inner'wheel is a tap screw engaging a threaded aperture in the hub, the clampingmeansfor the secondwheel will bea nut threadedly engaging the exterior of said tap screw. It has been found that it is difficult to unclamp the'outer wheel without also disturbing the clamping means for the inner wheel. This is for the reason that the threads of the outer clamping member are of greater radius than those for the inner clamping member and, consequently, the eifective frictional resistance to the turning of the outer member onthe inner member is greater than the resistance to turning of the inner member on its threaded bearing. As a result, the unscrewing of the outer member carries the inner member with it so that both wheels are simultaneously unclamped.

It is the object of the invention to provide means for preventing the loosening of the clamping means for the inner wheel during the unscrewing of the clamping means for the outer wheel. To this end the invention consists in the construction as hereinafter set forth.

In the drawing:

Fig. 1 is a sectional elevation showing a portion of the hub and one of the studs of a dual wheel mounting to which my improvement is applied;

, Fig. 2 is a section on line 2-2, Fig. 1;

Fig. 3 is aview similar to Fig. 1 showing a slightly modified construction;

Fig. 4 is a, similar view of another modification;

Fig. 5 is a view similar to Fig. 2 of another modification.

As shown in Fig. 1, A is a portion of a vehicle wheel hub and B is one of the threaded studs projecting outward therefrom. C is the inner wheel UN I GDE F RF iWB L' E' o I I HarveyGai Mo sher, 21:

' Application 1945'. sea-,1 Q 4 Claims. 01. sol-e4 6) engage thestudi B and cal portion E. for engaging aconical bearing C surrounding the aperture in the wheel C..:'I'he member E is also externally threaded for':engage-' ment ofa clamping'nut F which latter is provided with a conical-innerendportion-F for engaging aoonicalbearing'D'o'n the wheel D.- construction Ias thus fardescribed hasbeen heretofore use nd is objectionable for the'rea-. above' givem Thus; if iitTjS desired tozrem'ove the outer- 'wheel D, the "attemptto .unscrew .the nut- F will resultin also unscrewing the .member, E-tlie'reby loosening bothwheels; To avoid such result, :I- have devised'the construction shown in Figs. land-2 in whichG is a disc member detachably and non-rotatably. engageable with the clamping member E. As specifically shown in Figi 2g the member E has a polygonal portionE? tween the wheels C and D and the discG- is provided witha correspondingly shaped aperture therein. Thus, after the inner wheel C has been clamped-by the screwing of the members upon the studs B, the member G is engaged with the polygonal portion E hub A has a projecting As usually constructed, the flange portion A on which the wheels 0 and D are piloted when engaged with the studs B. To avoid interference with the flange A during engagement of the disc G with the portion E the outer periphery of'the disc has a small radius portion G which clears the flange A and also a large radius portion G which lies adjacent to said flange. Thus, any rotation of the member E on the stud B will be prevented by the member G. This member does not interfere with the mounting of the wheel D or the clamping by the nut F. However, if the nut F is unscrewed to release the wheel D, this; cannot rotate the member E on the stud B. On the other hand, if after removing the wheel D the wheel C and D the outer wheel, both being apertured to receive the stud by a member E B. The inner wheel 0 is clamped which is internally threaded to is also to be released, then the member G may be easily disengaged from the portion E of the member E after which the latter member may be ber H is either polygonal orotherwise fashioned has its inner end a5 c0nl-,

H is a nut engageable with the exber I is also externally threaded at V the nut F similar to to form a non-rotative engagement with the disc G and the construction is otherwise the same as above described.

With the modification shown in Fig. ,4, inplace of using a nut E engaging the stud B for clamping the inner wheel, a tap screw I engages a threaded socket A in the hub and is provided with a conicalportion I for clamping thewheel. The mem-l I for receiving the nut F and between this threaded portion 'and'the portion 1' is a polygonal portion I fr engaging the member G.

' In Fig; 5 is shown a serrated periphery J for engagement with a sim ilarly formed aperture obtained, viz., the clamping member for the inner which the member G is m mber againstrotation; g 1: w

What I claim as myinvention is:

1. In a mounting for dual vehicle wheels; the combination with a hub, 'a clamping member hav,

' ing a threaded engagementwith said hub for securing the inner wheel clamping member. coaxial and having a threaded e e olanma -,sec nd engagement with said firstjmentioned clamping member for securing-(the outer wheel tosaid hub;

gageable i with said ;..first,- mentioned clamping member andihaving; aibearing vagainst a portion of said hub forlocking said first:clamping member against rotation demounting Iof saidiouter wheel. s.

- '2. In a mounting for .dual vehiclewheels', the combination with a hub; a' clamping member, having athreadd engagement with said hub for securing the inner wheel thereto and a second clamping member coaxial and having a threaded engagement wi'th-"s'aid first mentioned clamping l during: the mounting and a construction where the poi tion which is engaged by the disc member G-has combination with a hub, a

member for securing the outer wheel to said hub; of means for locking said first mentioned clamping member against rotation comprising a member axially and non-rotatably engageable therewith in a plane between said wheel members and having an eccentric portion bearing against a portion of said hub.-

3. In a mounting for dual vehicl wheels, the

ing' a threaded engagement curing the inner wheel thereto and a second clamping member coaxial and having a threaded engagement with said first mentioned clamping member for securing the outer wheelto said hub;

v 6r mains for'locking said first mentioned clampin the member G.- With .f all the various modifications,-the same-result is in'g'member'from rotation comprising a polygonal bearing thereon in a plane between'said wheels 7 and' a'disc member, aperturedto be axially nwheel may be freely turned 'into clampingien-l s agement therewith after placed :in. position and :will 7 hold. said clamping of a member 'detachably-andinonerotatably en- 'ofsaid first. cl m ing memb r gageable with said polygonal bearing and having an eccentric portion for engaging a bearing on saidhubl; a

f1. In a mountingifor dual. v'ehic 1e'iv vl ieiels, the

combination with a hub therefrom, a member internallythreaded'tofeng gage said studhaving an inner end portion for en a ing ';the inner wh eiel. to clamp the same to said hub and also being externally threaded and a second member engaging;the external threads re amping said econdwheelto said hub; of a the external threads of sai firstclampinginem ber; and bearing against the inner I end portion thereof in' a plane between said, wllegals and hair 7 member aper r tured Q y e a e: M 139 fit th RO Y W Q- ingapolygonal contour and a; disc contour'ofthe last mentioned member andlalso havingbearing on a portion ofsaid hub serving to lock said first clamping member from rotation during rotation of said second'jclamping member in the mounting and demounting oithe outer wheel. .1 11 y e v H a A Y Q- MO HE? clamping member hav with said hub for se-.

having a stud projecting embere sin 

